What are questions 1,2,3,6,8&10?

construction control chapter twenty . We laid out an elevator for a building, and had offset it 2" on accident. This was easy to fix above ground, but made it difficult to fix below ground as the elevator pit must be correct and distances maintained from the elevator to the shaft. Anchor bolts were mis-oriented by 90 degrees. Inconsistent offsets were used. Laid out embeds improperly. Spacing alternated between S' and 7o.c. Had two 5' spacing dimensions back to back which threw the rest of the series off. Didn't double-check the spacing dimensions between a series of anchor bolt sets. Shot in each set as we ran wall forms but didn't double-check for 21 spacing from center of anchor bolt template to center of anchor bolt template QUESTIONS AND PROBLEMS 1. What is the most important part of layout? 2. List five important methods that should be followed when establishing horizontal control for layout. 3. List five important procedures that should be followed when establishing vertical control for layout. 4. How could color coding be used on layout work? 5. How much room is typically needed behind wall forms and the excavation for the crafts to work? 6. What is a simple way of keeping wall forms straight during a pour without actually being at the pour? 7. Why is it necessary for as-builts to be prepared for caisson locations? 8. Describe why it is important to go back to primary control for critical layout work. 9. On a project, a compass was attached at the end of a 5-foot wooden arm that was attached to an anchor bolt template. Why was a compass needed on the template? 10. Describe a method of protecting anchor bolts from being damaged after the concrete is poured. 11. When plumbing buildings with an instrument, what geometric relationship is very important to check? 12. What is the tolerance for laying out embeds? 13. Describe how lift drawings would be very useful to the layout person. 14. Describe the process that would be used to plumb a building with a plumb bob. 15. Why is piano wire used when plumbing elevator shafts? 20-42 construction control chapter twenty . We laid out an elevator for a building, and had offset it 2" on accident. This was easy to fix above ground, but made it difficult to fix below ground as the elevator pit must be correct and distances maintained from the elevator to the shaft. Anchor bolts were mis-oriented by 90 degrees. Inconsistent offsets were used. Laid out embeds improperly. Spacing alternated between S' and 7o.c. Had two 5' spacing dimensions back to back which threw the rest of the series off. Didn't double-check the spacing dimensions between a series of anchor bolt sets. Shot in each set as we ran wall forms but didn't double-check for 21 spacing from center of anchor bolt template to center of anchor bolt template QUESTIONS AND PROBLEMS 1. What is the most important part of layout? 2. List five important methods that should be followed when establishing horizontal control for layout. 3. List five important procedures that should be followed when establishing vertical control for layout. 4. How could color coding be used on layout work? 5. How much room is typically needed behind wall forms and the excavation for the crafts to work? 6. What is a simple way of keeping wall forms straight during a pour without actually being at the pour? 7. Why is it necessary for as-builts to be prepared for caisson locations? 8. Describe why it is important to go back to primary control for critical layout work. 9. On a project, a compass was attached at the end of a 5-foot wooden arm that was attached to an anchor bolt template. Why was a compass needed on the template? 10. Describe a method of protecting anchor bolts from being damaged after the concrete is poured. 11. When plumbing buildings with an instrument, what geometric relationship is very important to check? 12. What is the tolerance for laying out embeds? 13. Describe how lift drawings would be very useful to the layout person. 14. Describe the process that would be used to plumb a building with a plumb bob. 15. Why is piano wire used when plumbing elevator shafts? 20-42